What Happens If I Move or Rename a File?

Our software contains a process called "deduplication" where files are digitally fingerprinted (checksummed) before they are sent to the server. When a file's fingerprint (SHA-1 checksum) matches an already backed up file, but it's renamed or moved (including drive to drive), it's simply updated at the servers, rather than re-transmitted.

You may see these files queued for back up, but once any given file is at the front of the queue, it will be checksummed, compared against the existing backup, and "deduplicate" resulting in it being updated on the server rather than re-uploading

 

 

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